Both fuses attach with wires to the relay under the driver's seat. One
wire is just a continuation of power going into the relay from the dash
and now on to the kitchen. The other wire is from the output of the
relay to make sure the fridge only runs on 12 volts while the engine is
running. The relay is commonly called the fridge relay. You need this relay.

The proper relay has 5 pins, 2 of which are labeled pin 87.

An always hot wire goes from either the dash or aux battery to one pin
87. Another wire goes from the other 87 to the 2 fuse panel 8 amp side
and on to the led panel, water pump, etc. Pin 30 of the relay is power
out to the fridge 12 volt element. Pin 85 of the relay is grounded. Pin
86 connects to the blue wire from the alternator. This wire turns the
relay on whenever the alternator is charging.

Mark

Nathaniel Poole wrote:

> I'm almost finshed swapping my westy interior into my bus and I'm
> wondering about the wiring harness fo the level indicators, 12 volts
> to fridge and water pump. Bentley shows this supply as coming from the
> dash, while in my parts van there is a relay under the drivers seat,
> where the second battery would go (hookup not supplied in my parts
> van).
> My manual doesn't show this relay, and I'm wondering what purpose it
> serves. I would have thought the suply would go straight to the main
> 12v system as there are two fuses in a sepearte fuse box mounted on
> the wall.
>
> Nathaniel
>
> Marty
> '80 Zebra Bus
>